Antifriction bearing



Sept. 18, 1928.

J. F. O'CONNOR ANTIFRICTION BEARING Filed Feb. 5 1926 lllll Jab E circular form.

Patented Sept. 18, 1928.

JOHN F. OCONNOR, OF CHICAGO, ILLINOIS, ASSIGNOR 'IO W; H. MINER,

1,6s4,*5aa PATENT oFFicE.'

INC., 01*

CHICAGO, ILLINOIS, A CORPORATION OF DELAWARE.

ANTIFBIGTION BEARING.

Application filed February 5, 1926. Serial at. 86,159.

This invention relates to improvements in anti-friction bearings. o a

The object of the invention is to provide an efficient antifriction bearing especially fitted for use as a side bearing on railway cars and wherein the anti-friction element proper is always automatically returned to proper shown in Fig. 1. AndjFig. 3' isa vertical, sectional view corresponding substantially to the section line 33 of Fig. 1.

In said drawing, 10 denotes the upper portion of a truck bolster and 11, theunder portion of an opposed body bolster pf a railway car. My improved bearing is shown attached to the body bolster and comprises,

broadly, a base casting, retaining member or housing A; an anti-friction element proper B; a pair of springs C -C; a pair of spring followers DD; and a pair of links E-E. The housing A is in the form of a box having top wall 12, depending vertical side walls 1313 and curved end Walls 1 114, the housing being open at the bottom to perniit the anti-friction element proper to project therethrough. Theside walls 13 are provided each with a lateral off-set 13 of Each of the lateral off-set portions 13 is further formed with a laterally extended vertically disposed guide groove 15, the latter being adapted to be closed at the bottom by a threaded plug 16, as shown in Fig. 3. Preferably, a hardened wear or hearing plate 17 is inserted within the housing A at the upper side thereof, said plate being held in position by rivets 18.

The anti-friction element proper, B, is

shown as of true cylindrical form, although,-

as will be evident to those skilled in the art, the shape of this element may assume other forms. Said element is adapted to have rolling contact with the bearing plate 17 at the top and with the upper surface of the truck bolster at the bottom.

Disposed in each of the guides 15 is a spring C, the latter being inthe for'mof a coil with the axis thereof extending vertically so that said spring is adapted to be compressed in a vertical direction, that is,

n directionatright angles to the line of bodily movement of the element B. Each of said springs is supported atthe bottom by the plug-16, each of the latter preferably having a centering boss 19 for the spring.

1 Also mountedin each of the guides 15 and on ,topof the correspondingspring C- is a spring follower block'D, the latter having straightsides so that it isguided ver-' tically as hereinafter explained. c

The roller or element B is centrally apertured as indicated at 20, within which aperture is received a pin 21, the latter, having its ends extending beyond the ends of the ele-.

mentB. v The ends of said pin 21 are pivotally associated with the twolinks E, as clearly shown in Fig. 3. The upper end of the links E, on their outer sides, are provided eachwvitl a pivot lug 22 entered within a corresponding opening 23 provided in the corresponding follower D. The pin 21 is inserted through a suitable opening 24 in one of the side walls of the housing A before the wear plate 17 is applied so that, when the plate 17 is in position, the pin 21 can never assume a position opposite said opening 24, thereby retaining all of'the parts in assembled relation. i

The normal position ofthe parts is as shown by full lines in Fig. 1 where it will be noted that the links E assume a vertical position with the pivotal connections thereof in verticalalinement and the springs C in their most extended position. Then the anti-friction bearing is moved to either side of normal central position, as, for instance, to

the dotted position at the right-hand end to assume their normal vertical position and.

in turn restoring the element B to its central position ready for a succeeding actuation. In this connection it will be observed. that the opposite sections 13 of the side walls provide the necessary clearance for the be so formed and located as to determine the limit of BIOVQDQBIIlJ Qf the anti' preferred manner of carrying out the inven;

tion, but the same is merely illustrative'and all changes and modifications are con tin plated that come within the scope of the elaims appcnded heretog Ieiaim: H 1. In an anti-frieticn hmring, the colnbi nation with-a housing having 'side and end walls, and a bearing surface; the side walls of said housing being previdedwith vertically arranged gnideways extending from peints adjacent thefree extremitiescf each of said side walls inwardly to and terniinah ing stihstantialiy at said bearing surface; an anti-friction element disposed within said housing and adapted to roll back and forth v on said bearing surface; saidelement being of greater extent than theexte'nt cfsaid side wtlls, so as to project' beydnd the free extremities of the latter when in engagement witlrsaid bearing surface; followersslid :tbly dispbsed in sa-id "g'uideways, a coil sprim disposed ineach' of said g ideways, and links connected to said anti-friction elementand to the said followers, wherebyv imminent cf .safid anti-flfidt ibn element to new side of central position dfiekes said springs which 0 aerate to return said element *4? een alm it m aid iiol w m, p in and linike being interposed between the side walls of said housing and the adjacent ends eiis'aid antiPfriet-ion element,

2. In an anti-frictionbearing of the charmwdem1mmembi ation with a housing adapted to be secured, to a body bolster,

and prcvided wit-lrdepend'ingsidewalls and tically arranged guideways therein; of

a bearing surface, said sidewalls having yer-- followers supperted ripen the upper; ends of said-springs; an anti-friction element arrangedfin sai-d heusing gand adapted'jbe "engage said bearing surfbeeg said allti frictioii clement being, adapted to 'co-cperate with an opposingtriibk bolster; and links connecting said followers and said anti friction element for supporting the latter in said housing in contact with said bearing surface, mevement of said anti-frictinn element to eithersideof centralposition serving to flea: said springs- .Which operate" to retumsaid anti-friction element to central positien.

In Witness that 1 claim the foregbiiig I have herenntostzbscribed my name this 26th day of an uhry 1926 J OHN F. econnon; 

